You can also backup to iCloud if you've updated the iPad to version 5 software using iTunes.
To wipe everything just go to Settings -> Reset -> Erase All Content option, you will be asked twice.
(I was in an apple store earlier and a genius showed my mate how to do that!).
pro (16.8 / 1.2 sync) - BQM
- FTTC cab installed 18-jun-2012 - not yet active
- est 44.6 / 6.5